18:24=18/6:24/6=3:4
3:5分之3=3:*5/3=1:5
4.5:2.5=45:25=45/5:25/5=9:5
10分之3:0.54=3/10:54/100=3/10*100/54=10:18=5:9
24分:3分之小时 =24:180=24/12:180/12=2:15
18:24=18/6:24/6=3:4
3:5分之3=3:*5/3=1:5
4.5:2.5=45:25=45/5:25/5=9:5
10分之3:0.54=3/10:54/100=3/10*100/54=10:18=5:9
24分:3分之小时 =24:180=24/12:180/12=2:15